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Finding the Fourth Proportional to 35,633.90, 49,174.08 and 19,719.02

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Solution

The fourth proportional to 35,633.90, 49,174.08 and 19,719.02 is: 27,211.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,633.90 : 49,174.08 = 19,719.02 : x
  2. Step 2: Convert to fraction form
    35,633.90/49,174.08 = 19,719.02/x
  3. Step 3: Cross multiply
    35,633.90x = 49,174.08 × 19,719.02
  4. Step 4: Simplify right side
    35,633.90x = 969,664,667.00
  5. Step 5: Solve for x
    x = 969,664,667.00/35,633.90
  6. Step 6: Final answer
    x = 27,211.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.